Atlas Resource Partners, L.P. (Atlas Resource Partners), is an independent developer and producer of natural gas, crude oil and natural gas liquids (NGL), with operations in basins across the United States. The Company is a sponsor and manager of investment partnerships, in which it co-invests, to finance a portion of its natural gas and oil production activities. During the year ended December 31, 2012, its average daily net production was approximately 77.2 million cubic feet equivalent. On December 20, 2012, it completed the acquisition of DTE Gas Resources, LLC from DTE Energy Company. In August 2013, Atlas Resource Partners LP announced the acquisition of natural gas assets from EP Energy E&P Company, L.P.